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Finding the Fourth Proportional to 373,394.82, 515,324.81 and 228,285.75

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Solution

The fourth proportional to 373,394.82, 515,324.81 and 228,285.75 is: 315,058.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    373,394.82 : 515,324.81 = 228,285.75 : x
  2. Step 2: Convert to fraction form
    373,394.82/515,324.81 = 228,285.75/x
  3. Step 3: Cross multiply
    373,394.82x = 515,324.81 × 228,285.75
  4. Step 4: Simplify right side
    373,394.82x = 117,641,310,744.46
  5. Step 5: Solve for x
    x = 117,641,310,744.46/373,394.82
  6. Step 6: Final answer
    x = 315,058.76

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.